Collapsible paper cup and blank therefor



Nov. 4 1924. 1,514,034

P. H. CARR COLLAPSIBLE PAPER CUP AND BLANK THEREFOR Filed March 11 922 2 Sheets-Sheet 1 Nov. 4 1924 1,514,034

P. H. CARR COL LAPSIBLE PAPER CUP AND BLANK THEREFOR Filed March 1 1 922 2 Sheets-Sheet 2 Patented Nov. 4, 1924.

UNITED STATES- PAUL H. CARR, OF BALTIMORE, MARYLAND.

COLLAPSIIBLE PAPER CU]? AND BLANK THEREFOR.

Application filed March 11, 1922.

To all whom it may concern:

Be it known that 1, PAUL H. C ARR, a citizen of the United States, and a temporary resident of the city of Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Collapsible Paper Cups and Blanks Therefor, of which the following is a specification.

This invention is an improvement in the collapsible paper cup shown in my Patent No. 1,351,412, dated August 31, 1920.

As stated in my former patent, paper drinking cups of the type most universally used prior to my invention, are objectionable from the standpoint that it is frequently difficult to extend the cup to open position, and that it is impossible to set the cup on a support full of water, or other liquid, because the said prior cup presents materially a thin folded edge at the bottom, which edge, of course, will not support the cup in upright position either when empty or full.

To overcome these defects, prior inventors have provided the cups with fins or tabs on one wall of the cup to facilitate the opening of the cup, but these have been found to be objectionable because of their liability to tear, and they are further objectionable in that it is necessary to place the cups in the dispensing cabinet in a particular way. Still another objection to the folding paper cups prior to my invention is that the said cups cannot be opened symmetrically and the walls of the cup frequently buckles, thereby making it extremely awkward to drink therefrom.

The object of my invention is to provide, and my invention consists in a collapsible drinking cup made from a rectangular blank having one long score positioned centrally and extending throughout the length of the blank, two transverse scores, and four diagonal scores at the center forming a square positioned diagonally with respect to the blank, diametrically disposed notches in the side edges of the blank; flaring. from two corners of said square, and a score on each side parallel with a score terminating substantially in a plane transverse to the blank at the other corners of said square.

In the drawings: I

Figure 1 is a plan view of a cup blank embodying my invention,

Fig. '2 is a perspective view of the blank illustrating the first fold in the process of Serial No. 543,120.

a longitudinal score 2 centrally disposed and extending longitudinally throughout the length of said blank, which score facilitates the folding of the blank, so that the cup may assume a flattened position when not in use. score 2 provides for the folding inwardly of the bottom portion of the cup as disclosed in my Patent 1,351,412, whereby, the completed cup may be folded flat.

Substantially in the center of the blank, I provide four diagonal scores 3, forming a square set diagonally with respect to the blank. These scores do not extend to the side edges of the blank but as disclosed in the drawing I form in each side edge of the blank a notch 4 flaring outwardly from two diametrically opposite corners of said square. The object of these flaring notches is to eliminate four thicknesses of paper in the point portion 5 of the side walls of the cup.

It will be noted in this connection that in my previous patent there are four more thicknesses of paper in this point portion 5 than are present in this invention.

The blank is further provided with parallel transverse scores 6 extending from side edge to side edge of the blank, and is also provided with two parallel longitudinally extending scores 7 disposed on each side of the longitudinal score 2, the ends of these scores 7 terminating in a plane at two opposite corners of the diagonally disposed square or materially short of the blank.

The object of these two scores 7 is to assist in giving a more or less rectangular form to the bottom portion of the body of the cup, and permitting the upper portions of the walls of the cup to assume a substantially circular formation, whereby drinking from the cup is materially facilitated.

Further, the center zone of the It will be noted in this particular that the scores 3 and 4 shown in Fig. 2 of my prior patent extend the full length of the blank, whereas in this improvement, these scores are less than the length of'the blank.

The blank is also provided with a tongue like extension 9, at one end, and with a score 10 at the juncture of the blank and'tongue, while at the other end of the blank, there is provided a score 11 whereby the end portion of the blank may be folded upon itself thus rigidifying the top edge of the cup.

It will be noted that the tongue 9 is of less width than the blank, so that when the blank is folded to form the cup, one edge of the blank abuts the ends 12 of the tongue, whereby the folded over portion 13, at the other end of the blank overlaps the other edge portion of the blank as shown in the drawings, thus more firmly and securely fastening the two edges together. I have indicated by shade lines, certain zones of the blank provided with paste.

The first fold of the blank to fold the cup is indicated in Fig. 2. This figure illustrates very clearly the difference between the blank shown in this case, and the blank shown in my prior patent. After the preliminary fold is made, then the other ed e of the blank is C folded as indicated, and t e parts properly pasted, after which the points 5 are then pasted, to the walls of the cup whereupon the cup is ready to be extended to the position shown in the drawing.

What I claim is:

1. A collapsible drinking cup made from a rectangular blank having one longitudinal score positioned centrally and extending throughout the length of the blank, two transverse scores, and four diagonal scores at the center forming a square set diagonally with respect to the blank, diametrically disposed notches in the side edges of the blank flaring from two corners of said square and a score on each side of and parallel with the said centrally disposed score terminating substantially in line with the other corners of said square.

2. A collapsible drinking cup made from a rectangular blank having one longitudinal score positioned centrally and extending throughout the length of the blank, two

transverse scores, and four diagonal scores at the center forming a square set diagonally with respect to the blank, diametrically disposed notches in the side edges of the blank flaring from two corners of said square and a score on each side'of and parallel with the centrally dlsposed score terminating in line with the other corners of said square, and transverse scores near the ends of the blank.

3. A receptacle made from a single blank rially short of the length of the blank, the

edges of the blank being overlapped and pasted together, the portion of the blank between the transverse scores and between the said parallel scores and the side edges of the blank being folded upon-each other and pasted together and folded-up against and pasted to the sides of the cup, thereby serving to stiffen the cup at each side of the bottom to sufficiently resist normal pressure at the areas at the bottom of the cup to facilitate the proper opening of the cup when the cup is pressed to open it. I

4. In a folding paper cup made of a ingle blank of the character described, a tongue like integral extension on one end of the blank, a score at the juncture of the extension and blank whereby the extension may portion of the blank may be folded against the outer face of the cup, the end portions of this fold extending, when the cup is formed to abut the ends of the extension thereby overlapping the side joints of the cup, said parts being pasted when in proper position.

5. A collapsible drinking cup made from a rectangular blank having one longitudinal score positioned centrally and extending transverse scores, and four diagonal scores at the center forming a square set diagonally with respect to the blank, diametrically disposed notches in the side edges of the blank flaring from two corners of said square and a score on each side of and parallel with the said centrally disposed score terminating materially short of the blank, a broad tongue like extensionat one end and of less width than the blank, a score at the juncture of the extension and blank, and a transverse score near the other end of the blank.

In testimony whereof I affix my signature.

PAUL H. CARR.

-throughout the length of the blank, two 

